The FDA has now approved MENTOR MemoryShape breast implants that ar both natural and firm. They have been used for over a decade and in over 70 countries. Inside of the implants is a highly cohesive gel that creates a one-of-kind tapered look. Instead of being round, these implants are teardrop shaped, having a thin top and a subtle transition into a fuller project at the bottom of the implant; this is a more natural shape. Every implant contains SILTEX Texture, which is an imprinting process that does not allow the implant to move.